a4m072: add CONFIG_SYS_FLASH_BANKS_SIZES define

This patch adds CONFIG_SYS_FLASH_BANKS_SIZES define to make use of new
cfi_flash driver ability to detect flash chips that are bigger than a
corresponding address window (we have such situation on some revs of
a4m072).

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
diff --git a/include/configs/a4m072.h b/include/configs/a4m072.h
index a24b304..f18bc45 100644
--- a/include/configs/a4m072.h
+++ b/include/configs/a4m072.h
@@ -228,6 +228,7 @@
 #define CONFIG_SYS_FLASH_CFI
 #define CONFIG_SYS_FLASH_CFI_WIDTH	FLASH_CFI_16BIT
 #define CONFIG_SYS_FLASH_BANKS_LIST	{CONFIG_SYS_CS0_START}
+#define CONFIG_SYS_FLASH_BANKS_SIZES	{CONFIG_SYS_CS0_SIZE}
 
 /*
  * Environment settings